From: Boshi Yu <boshiyu@linux.alibaba.com>
Date: Fri, 25 Jul 2025 05:53:56 +0000 (+0800)
Subject: RDMA/erdma: Fix unset QPN of GSI QP
X-Git-Tag: v6.16.4~99
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a473adc12a63a35d2f3ae095b2aa1a3002985d71;p=thirdparty%2Fkernel%2Fstable.git

RDMA/erdma: Fix unset QPN of GSI QP

[ Upstream commit d4ac86b47563c7895dae28658abd1879d266b2b4 ]

The QPN of the GSI QP was not set, which may cause issues.
Set the QPN to 1 when creating the GSI QP.

Fixes: 999a0a2e9b87 ("RDMA/erdma: Support UD QPs and UD WRs")
Reviewed-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Boshi Yu <boshiyu@linux.alibaba.com>
Link: https://patch.msgid.link/20250725055410.67520-4-boshiyu@linux.alibaba.com
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.c b/drivers/infiniband/hw/erdma/erdma_verbs.c
index c1b2b8c3cdcca..8d7596abb8229 100644
--- a/drivers/infiniband/hw/erdma/erdma_verbs.c
+++ b/drivers/infiniband/hw/erdma/erdma_verbs.c
@@ -994,6 +994,8 @@ int erdma_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs,
 		old_entry = xa_store(&dev->qp_xa, 1, qp, GFP_KERNEL);
 		if (xa_is_err(old_entry))
 			ret = xa_err(old_entry);
+		else
+			qp->ibqp.qp_num = 1;
 	} else {
 		ret = xa_alloc_cyclic(&dev->qp_xa, &qp->ibqp.qp_num, qp,
 				      XA_LIMIT(1, dev->attrs.max_qp - 1),